math.js

const LenoxCommand = require('../LenoxCommand.js');
const Discord = require('discord.js');
const math = require('math-expression-evaluator');

module.exports = class mathCommand extends LenoxCommand {
	constructor(client) {
		super(client, {
			name: 'math',
			group: 'currency',
			memberName: 'math',
			description: 'Solve mathematical calculations to get credits',
			format: 'math',
			aliases: [],
			examples: ['math'],
			clientpermissions: ['SEND_MESSAGES'],
			userpermissions: [],
			shortDescription: 'Games',
			dashboardsettings: true
		});
	}

	async run(msg) {
		const langSet = msg.client.provider.getGuild(msg.guild.id, 'language');
		const lang = require(`../../languages/${langSet}.json`);

		const randomForNumbers = Math.random();
		let firstNumber;
		let secondNumber;

		if (randomForNumbers <= 0.33) {
			firstNumber = Math.floor(Math.random() * 10) + Math.floor(msg.client.provider.getUser(msg.author.id, 'mathematics').level / 5);
			secondNumber = Math.floor(Math.random() * 15) + Math.floor(msg.client.provider.getUser(msg.author.id, 'mathematics').level / 5);
		} else if (randomForNumbers <= 0.66) {
			firstNumber = Math.floor(Math.random() * 10) - Math.floor(msg.client.provider.getUser(msg.author.id, 'mathematics').level / 5);
			secondNumber = Math.floor(Math.random() * 15) + Math.floor(msg.client.provider.getUser(msg.author.id, 'mathematics').level / 5);
		} else if (randomForNumbers <= 1) {
			firstNumber = Math.floor(Math.random() * 10) - Math.floor(msg.client.provider.getUser(msg.author.id, 'mathematics').level / 5);
			secondNumber = Math.floor(Math.random() * 15) - Math.floor(msg.client.provider.getUser(msg.author.id, 'mathematics').level / 5);
		}

		const signs = ['+', '-', '*'];
		const sign = Math.floor(Math.random() * signs.length);

		const embed = new Discord.MessageEmbed()
			.setFooter(msg.author.tag)
			.setTitle(lang.math_embedauthor)
			.setColor('#3399ff')
			.setDescription(`**${Number(firstNumber) < 0 ? `(${firstNumber})` : firstNumber} ${signs[sign]} ${Number(secondNumber) < 0 ? `(${secondNumber})` : secondNumber}**`);

		await msg.channel.send({
			embed: embed
		});

		let response;
		try {
			response = await msg.channel.awaitMessages(msg2 => msg.author.id === msg2.author.id, {
				max: 1,
				time: 7000,
				errors: ['time']
			});
		} catch (error) {
			let currentCredits = msg.client.provider.getUser(msg.author.id, 'credits');
			currentCredits -= 10;
			await msg.client.provider.setUser(msg.author.id, 'credits', currentCredits);

			return msg.reply(lang.math_timepassed);
		}

		const mathCalculation = await math.eval(`${firstNumber} ${signs[sign]} ${secondNumber}`);

		if (mathCalculation === Number(response.first().content)) {
			const currentMathematics = msg.client.provider.getUser(msg.author.id, 'mathematics');
			currentMathematics.points += 2;
			await msg.client.provider.setUser(msg.author.id, 'mathematics', currentMathematics);

			const mathLevel = Math.floor(1.5 * Math.sqrt(msg.client.provider.getUser(msg.author.id, 'mathematics').points + 1));
			if (mathLevel > msg.client.provider.getUser(msg.author.id, 'mathematics').level) {
				const currentMathematics2 = msg.client.provider.getUser(msg.author.id, 'mathematics');
				currentMathematics2.level = mathLevel;
				await msg.client.provider.setUser(msg.author.id, 'mathematics', currentMathematics2);
			}

			let currentCredits = msg.client.provider.getUser(msg.author.id, 'credits');
			currentCredits += 15 + Math.floor(msg.client.provider.getUser(msg.author.id, 'mathematics').level / 5);
			await msg.client.provider.setUser(msg.author.id, 'credits', currentCredits);

			const winauthor = lang.math_winauthor.replace('%amount', 15 + Math.floor(msg.client.provider.getUser(msg.author.id, 'mathematics').level / 5));
			const embeddescription = lang.math_embeddescription.replace('%points', msg.client.provider.getUser(msg.author.id, 'mathematics').points).replace('%level', msg.client.provider.getUser(msg.author.id, 'mathematics').level);
			const winnerEmbed = new Discord.MessageEmbed()
				.setColor('#00ff00')
				.setFooter(msg.author.tag)
				.setTitle(winauthor)
				.setDescription(embeddescription);

			msg.channel.send({
				embed: winnerEmbed
			});
		} else {
			let currentCredits = msg.client.provider.getUser(msg.author.id, 'credits');
			currentCredits -= 10;
			await msg.client.provider.setUser(msg.author.id, 'credits', currentCredits);

			const embeddescription = lang.math_embeddescription.replace('%points', msg.client.provider.getUser(msg.author.id, 'mathematics').points).replace('%level', msg.client.provider.getUser(msg.author.id, 'mathematics').level);
			const loseauthor = lang.math_loseauthor.replace('%correct', mathCalculation);
			const loserEmbed = new Discord.MessageEmbed()
				.setColor('#ff0000')
				.setFooter(msg.author.tag)
				.setTitle(loseauthor)
				.setDescription(embeddescription);

			msg.channel.send({
				embed: loserEmbed
			});
		}
	}
};